Cisco Nexus 5500 Series NX-OS System Management Command Reference

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Updated:: January 31, 2013

N Commands

This chapter describes the system management commands that begin with N.

ntp

To configure the Network Time Protocol (NTP) peers and servers for the switch, use the ntp command. To remove configured peers and servers, use the no form of this command.

ntp {peer hostname | server hostname} [prefer] [use-vrf vrf-name]

no ntp {peer hostname | server hostname}

Syntax Description


peer hostname	Specifies the hostname or IP address of an NTP peer.
server hostname	Specifies the hostname or IP address of the NTP server.
prefer	(Optional) Specifies this peer/server as the preferred peer/server.
use-vrf vrf-name	(Optional) Specifies the virtual routing and forwarding (VRF) used to reach this peer/server.

Command Default

None

Command Modes

Global configuration mode

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Usage Guidelines

You can specify multiple peer associations.

Examples

This example shows how to form a server association with a server:

switch(config)# ntp server ntp.cisco.com

This example shows how to form a peer association with a peer:

switch(config)# ntp peer 192.168.10.0

This example shows how to delete an association with a peer:

switch(config)# no ntp peer 192.168.10.0

Related Commands


Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp abort

To discard the Network Time Protocol (NTP) Cisco Fabric Services (CFS) distribution session in progress, use the ntp abort command.

ntp abort

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Global configuration mode

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Examples

This example shows how to discard the NTP CFS distribution session in progress:

switch(config)# ntp abort

Related Commands


Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp authenticate

To enable Network Time Protocol (NTP) authentication, use the ntp authenticate command. To disable NTP authentication, use the no form of this command.

ntp authenticate

no ntp authenticate

Syntax Description

This command has no arguments or keywords.

Command Default

Disabled

Command Modes

Global configuration (config)

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable NTP authentication:

switch(config)# ntp authenticate

This example shows how to disable NTP authentication:

switch(config)# no ntp authenticate

switch(config)#

Related Commands


Command	Description
show ntp authentication-status	Displays the status of NTP authentication.

ntp commit

To apply the pending configuration pertaining to the Network Time Protocol (NTP) Cisco Fabric Services (CFS) distribution session in progress in the fabric, use the ntp commit command.

ntp commit

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Global configuration mode

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Examples

This example shows how to commit changes to the active NTP configuration:

switch(config)# ntp commit

Related Commands


Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp distribute

To enable Cisco Fabric Services (CFS) distribution for Network Time Protocol (NTP), use the ntp distribute command. To disable this feature, use the no form of this command.

ntp distribute

no ntp distribute

Syntax Description

This command has no arguments or keywords.

Command Default

Disabled

Command Modes

Global configuration mode

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Usage Guidelines

Before distributing the Fibre Channel timer changes to the fabric, the temporary changes to the configuration must be committed to the active configuration using the ntp commit command.

Examples

This example shows how to distribute the active NTP configuration to the fabric:

switch(config)# ntp distribute

Related Commands


Command	Description
ntp commit	Commits the NTP configuration changes to the active configuration.
show ntp	Displays NTP information.

ntp sync-retry

To retry synchronization with the configured Network Time Protocol (NTP) servers, use the ntp sync-retry command.

ntp sync-retry

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

EXEC mode

Command History


Release	Modification
5.2(1)N1(1)	This command was introduced.

Examples

This example shows how to retry synchronization with the configured NTP servers:

switch# ntp sync-retry

Related Commands


Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

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